If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3z-15=3
We move all terms to the left:
3z-15-(3)=0
We add all the numbers together, and all the variables
3z-18=0
We move all terms containing z to the left, all other terms to the right
3z=18
z=18/3
z=6
| 8+5f=–4f+1+8f | | (4x-12)+(10x-72)=180 | | 3m+6=12-3 | | -24=6(e-39) | | –4+16c=18c–4 | | -2a+9=15-8a+3a | | x=18x+54 | | 1/4(8x-4)=1/3(12x=3) | | 6x2+7x-9=0 | | -4(v+6)=-8v-48 | | 1/4(8x-4)=1/3(12x)=13 | | y/–5+23=25 | | 8u+40=2(u-1) | | 3(e-6)=30 | | 7x2-8x-9=0 | | 3(v-5)-4=-5(-4v+5)-8v | | -7n-4=n-7n | | 3/2=3.5x | | 5(w-9)=-6w-23 | | 5(11x-17)=115 | | 12.84+0.09(x+3)=13.34-0.12x | | 5(w-8)=-6w-23 | | -17+6x=29 | | 7x2+2x-8=0 | | 5(-3x+24)=15x | | 2/3x-(-2/3)=3/5 | | 19=-7v+5(v+3) | | 7x+18=9x-14 | | 17x2-21x+4=0 | | 4x/14-(-5/7)=3/7 | | 5a^2+7a-2=0 | | -3x-7=−8x−57 |